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Rails: where does the infamous “current_user” come from?
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It is defined by several gems, e.g. Devise
You'll need to store the user_id somewhere, usually in the session after logging in. It also assumes your app has and needs users, authentication, etc.
Typically, it's something like:
class ApplicationController < ActionController::Base
def current...
Track all remote git branches as local branches
... "HEAD|master". To get the names of just the branches minus the origin/ substring we use Bash's string manipulation ${var#stringtoremove}. This will remove the string, "stringtoremove" from the variable $var. In our case we're removing the string origin/ from the variable $i.
NOTE: Alternatively yo...
Polymorphism vs Overriding vs Overloading
...can tell an entire room full of Humans to go pee.
public static void main(String[] args){
ArrayList<Human> group = new ArrayList<Human>();
group.add(new Male());
group.add(new Female());
// ... add more...
// tell the class to take a pee break
for (Human person ...
Mockito.any() pass Interface with Generics
...sm to allow for generics:
import static org.mockito.Matchers.any;
List<String> list = any();
when(callMyMethod.getResult(list)).thenReturn(myResultString);
Hope this helps someone.
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jQuery trigger file input
...hen the <input type="file"/> is set to display:none; or is visbilty:hidden.
So i tried positioning it outside the viewport by setting position:absolute and top:-100px; and voilà it works.
see http://jsfiddle.net/DSARd/1/
call it a hack.
Hope that works for you.
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Replacing column values in a pandas DataFrame
...female': 1, 'male': 0})
(Here I convert the values to numbers instead of strings containing numbers. You can convert them to "1" and "0", if you really want, but I'm not sure why you'd want that.)
The reason your code doesn't work is because using ['female'] on a column (the second 'female' in y...
How to implement Enums in Ruby?
...e when you want to enhance readability without littering code with literal strings.
postal_code[:minnesota] = "MN"
postal_code[:new_york] = "NY"
Constants are appropriate when you have an underlying value that is important. Just declare a module to hold your constants and then declare the constan...
Moment.js: Date between dates
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You can use
moment().isSameOrBefore(Moment|String|Number|Date|Array);
moment().isSameOrAfter(Moment|String|Number|Date|Array);
or
moment().isBetween(moment-like, moment-like);
See here : http://momentjs.com/docs/#/query/
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CKEditor instance already exists
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function loadEditor(id)
{
var instance = CKEDITOR.instances[id];
if(instance)
{
CKEDITOR.remove(instance);
}
CKEDITOR.replace(id);
}
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How to change color in circular progress bar?
I am using circular progress bar on Android. I wish to change the color of this. I am using
22 Answers
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